Macro si_trace_print::pfo

macro_rules! pfo {
    (
        $($args:tt)*
    ) => { ... };
}

println! in a function with offset.

To signify printing within a function. Use to println! in a function.

use si_trace_print::{pfn, pfx};
use si_trace_print::pfo;
fn func1() {
    pfo!("hello");
}
fn main() {
    pfn!();
    func1();
    pfx!();
}

prints

→main:
    func1: hello
←main:

Uses so().